Obesity is one of the world’s most prominent health crises and is more than just a cosmetic problem. It is defined as excess body fat that increases the risk of type 2 diabetes, cardiovascular disease, fatty liver disease, sleep apnea, and even certain cancers. Symptoms include fatigue, shortness of breath, joint pain, and metabolic problems that worsen over time. If left untreated, obesity shortens lifespan and reduces quality of life.
As of 2021, approximately 1 billion men and 1.11 billion women worldwide were classified as overweight or obese, and more than 3.8 billion adults are expected to be overweight or obese by 2050.1 Therefore, obesity becomes one of the main causes of decreased life expectancy. Every year, millions of people attempt weight loss programs based on the idea that eating less and moving more is a simple solution. However, long-term data shows that most people regain the weight they lost, which leads to discouragement and worsening metabolism.
That failure points to a deeper problem than calorie math. Researchers such as molecular biologist Brad Marshall and bioenergy researcher Georgi Dinkov, known for their Fire in a Bottle study, have argued that obesity results from cellular energy imbalances. They focus on reductive stress, a condition in which mitochondria, the tiny energy factories within cells, struggle to burn oxygen efficiently.
When cells are unable to fully burn food for energy, the result is fat accumulation, lower metabolic rate, and widespread dysfunction. Shifting the conversation from willpower to cellular energy can provide a different perspective on obesity. This perspective suggests that the fat and fuel you consume directly changes the way your body manages energy and redefines the solution to obesity.
Experts Link Obesity to Cellular Energy Disorders
It is counterproductive if your cells rely too heavily on burning fat for energy, especially during times of stress. Breaking down fat uses vitamin B2 (riboflavin), which is needed to keep one of the key energy complexes (complex II) in your mitochondria running smoothly. When that helper is depleted, electrons begin to flow backwards in a process scientists call “reverse electron flow.” Instead of producing clean energy, these backflows create a flood of reactive oxygen species (ROS).2
The body reads the accumulation of ROS as a stress signal. To protect itself, it lowers its metabolic rate and switches into fat storage mode. That said, burning excess fat doesn’t always help you lose weight. In some cases, it promotes weight gain in the body.
In a video discussion hosted by David Gornoski, Dinkov and Marshall explained why obesity has a greater impact on impaired energy metabolism than overeating.3 They argued that when cells cannot properly burn oxygen and fuel, the body accumulates fat. This perspective challenges the standard “calories in, calories out” model that dominates mainstream advice.
• Experts draw from their personal and professional experiences — Marshall explained that her weight issues led her to become interested in mitochondrial science and how cells use fuel. With a background in computer science and bioinformatics, Dinkov became fascinated with biochemistry and metabolism after years of self-directed research. Their talk aimed to help people understand why traditional approaches like calorie restriction and the keto diet fail in the long term.
• The focus has shifted to the role of polyunsaturated fats (PUFs). According to Marshall, “When you take a PUF (such as linoleic acid (LA) from vegetable oils)… it doesn’t burn as much oxygen and doesn’t produce as many reactive oxygen species.” Simply put, vegetable oils rich in PUFs, such as soy and canola, reduce the ability of cells to burn fuel efficiently. This incomplete combustion causes unused energy to accumulate and be stored in the body as fat.
• How this process creates reductive stress — Reductive stress means that cells have too much stored energy and not enough oxygen available to process it. In this condition, certain key enzymes stop working and carbohydrate burning is blocked. At the same time, fat also remains partially burned and remains in a low-energy fat storage mode. Marshall described this as the body’s “switch” that favors fat production when it senses an energy backlog.
• PUF signaling mimics animal hibernation — Dinkov pointed out that squirrels and bears consume a lot of PUF before winter. That’s because PUF lowers body temperature, slows brain and reproductive functions, and puts you into a state of stupor. This means your body slows down into a low-energy, semi-hibernating mode.
Studies in humans have shown similar effects. Excessive PUF slows your metabolic rate, leaving you feeling tired, cold, and prone to storing fat. As Dinkov explains, “You actually end up gaining weight because your metabolic rate drops.”
• The hormonal side of the story – Estrogen, commonly thought of as a female hormone, is a stress hormone that causes cells to swell with water and block energy production. Dinkov noted that PUFs mimic estrogen inside cells, amplifying stress signals that push the body toward fat storage. In his words, “Polyunsaturated fats mimic the effects of estrogen very well.”
Reductive stress has been linked to diseases beyond obesity
When cells are overloaded with energy but don’t have enough oxygen to burn it, they switch to the emergency pathway, producing lactic acid. Dinkov explained that this is the same process seen in cancer cells and severe diabetes, where energy is produced inefficiently. In other words, obesity and chronic disease share a root cause. This means that oxygen use is blocked at the cellular level.
• Food quality is more important than calorie counts — Marshall cautioned that the high calorie content of PUF often causes people to gain fat while eating in a calorie deficit. He contrasted this with healthy carbohydrates and saturated fats, which do not trigger the same fat storage pathways. He explained that the process of converting carbohydrates into fat, known as de novo lipogenesis, does not begin until a person consumes more than a pound of carbohydrates per day, which is unusual.
• The first step is to avoid PUF-rich oils and processed foods that contain them. Instead, focus on natural saturated fats like grass-fed butter, tallow, and ghee, which support oxygen use and energy production. They also emphasized that restoring metabolic flexibility (the ability to switch between burning fat and burning carbohydrates) is key to reversing obesity.
• Shift the blame away from willpower — And focus on making smarter food choices that protect cellular energy. By avoiding PUFs like LA and supporting your metabolism with the right types of fats and carbohydrates, you can give your body the tools to burn fuel instead of storing it. “It matters what kind of calories you consume,” Dinkov summarizes. This means that everyday choices, not genetics or endless dieting, are the lever for better health.
How to Reboot Your Metabolism and Stop Fat Storage
If you find yourself frustrated by weight gain despite dieting, the problem is cellular energy, not willpower. When cells become trapped under reductive stress caused by PUFs such as LA, the body lowers its metabolic rate and switches into fat storage mode.
The way out is not starving or running endlessly. This is about fixing the way your body burns fuel. This phase is designed to help restore oxygen use, protect your mitochondria, and ultimately put your body back into fat-burning mode.
1. Eliminate vegetable oil from your diet — If your diet includes soybean oil, canola oil, corn oil, sunflower oil, safflower oil, or packaged foods made from them, you are slowing down your metabolism and mimicking hibernation in LA. Replace with stable fats like grass-fed butter, ghee, or tallow. When you change your cooking oil and avoid LA in ultra-processed foods, you’ll notice an improvement in your energy levels as your cells begin to burn fuel more cleanly.
2. Prefer saturated fats for steady energy — Replace vegetable oils with saturated fats that burn efficiently and support oxygen use. Think of it like putting the right fuel in your engine. Your engine runs smoother, longer and with fewer breakdowns. Grass-fed butter, ghee, and animal fats signal your cells to stay active and energetic instead of closing down their fat storage compartments.
3. Choose your carbohydrates wisely to keep your metabolism flexible. When you cut back on carbohydrates to lose weight, your body falls into the same low-energy trap. Choosing your carbohydrates carefully can actually protect your metabolism. Whole fruits, white rice, and root vegetables help cells maintain energy balance and prevent shutdowns due to lack of oxygen use. The key is to combine these carbohydrates with healthy fats while avoiding PUFs, which block energy production.
4. Lower your stress hormones naturally — If you often feel anxious or have trouble sleeping, cortisol and estrogen are likely slowing your metabolism. Stress hormones tell your body to store fat. Practical measures such as avoiding LA with vegetable oils, getting daily sunlight and adequate rest, and reducing alcohol intake can help reset these hormones. By lowering stress signals, your body regains its ability to burn energy instead of storing it.
5. Train your body to convert fuel through movement — When you lead a sedentary lifestyle, your cells lose the flexibility to burn both fat and carbohydrates. Light strength training, daily walking, and light resistance training activate your mitochondria and improve their ability to use oxygen. Think of it as a reminder of how your metabolism works. No extreme exercise is necessary. All you need is consistent movement to strengthen your muscles and keep your energy flowing.
FAQs about Obesity
cue: It’s not just about overeating, so why does obesity occur?
no way: Obesity occurs when cells cannot burn fuel efficiently. Instead of using oxygen to completely burn carbohydrates and fat, your body gets stuck in reductive stress – too much stored energy with nowhere to go. This will cause your body to lower your metabolism and store more fat, even if you don’t overeat.
cue: What role do PUFs play in weight gain?
no way: PUFs, such as LA, found in vegetable oils such as soybean oil, canola oil, and sunflower oil, reduce the ability of mitochondria to burn oxygen. This incomplete burning causes fat storage and acts like a hibernation signal for the body, reducing energy, brain function, and even reproductive health.
cue: How do hormones like estrogen and cortisol relate to obesity?
no way: Both estrogen and cortisol act as stress signals that push the body into fat storage. PUFs mimic estrogen inside cells, amplifying water retention and blocking energy production. High cortisol from chronic stress has the same effect, lowering your metabolism and making fat loss more difficult.
cue: What are practical steps to improve metabolism and reduce fat storage?
no way: You can restore your metabolism by cutting out PUF-rich vegetable oils, replacing them with saturated fats like butter and ghee, choosing natural carbohydrates, lowering stress hormones through lifestyle changes, and moving your body through walking or strength training. This step works by improving oxygen use inside cells.
cue: How does this approach differ from traditional weight loss advice?
no way: Instead of focusing on calorie restriction or extreme dieting, this method targets the root cause: energy metabolism disorders. By restoring the way your mitochondria burn fuel, you can switch back from fat storage to fat burning, making weight loss sustainable and restoring energy for everyday life.
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